Finding the Fourth Proportional to 1,683,121.40, 2,322,726.02 and 919,197.44
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Solution
The fourth proportional to 1,683,121.40, 2,322,726.02 and 919,197.44 is: 1,268,502.56
Step by Step Solution
- Step 1: Write the proportion equation
1,683,121.40 : 2,322,726.02 = 919,197.44 : x - Step 2: Convert to fraction form
1,683,121.40/2,322,726.02 = 919,197.44/x - Step 3: Cross multiply
1,683,121.40x = 2,322,726.02 × 919,197.44 - Step 4: Simplify right side
1,683,121.40x = 2,135,043,811,405.39 - Step 5: Solve for x
x = 2,135,043,811,405.39/1,683,121.40 - Step 6: Final answer
x = 1,268,502.56
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.